Community-maintained principles reviewed before publication and retrieved as Agent design constraints.
Mobile Bottom Action Bar turns a frequent interface judgment into an executable constraint before generation.
Critical mobile actions should be thumb-reachable without covering content, errors, or system navigation.85%Visual Foundationsactions / contextContextual Action Placement turns a frequent interface judgment into an executable constraint before generation.
Button placement signals scope: row-level, card-level, section-level, and global actions must not blur together.84%Interaction Responsive Motionbuttons / actionsPrimary, secondary, destructive, and navigation actions need clear differences to avoid mistakes.
Button styling expresses decision cost and risk, not just visual preference.82%